ASTM E428 PDF

Designation: E – 00 An American National Standard. Standard This practice covers a procedure for fabrication and ASTM Standards: control of. ASTM Distance-Amplitude #3, #5, #8 FBH Blocks (set of. 19). 9. EDM Notches . amplitude. Specifications: ASTM E, ASTM. E Calibration. Application. ASTM E – 00 – Standard Practice for Fabrication and Control of Steel Reference Blocks Used in.

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The following machining sequence is recommended: Therefore, consideration should be given to the operating characteristics of the search unit and instrument generally available from the equipment manufacturer when evaluating the response curves from the reference blocks.

Summary of Practice 4. The acoustic noise level from the material is not to be confused with inherent electrical instrument noise often observed when the system sensitivity is adjusted to its maximum level range. The grain size, heat treat condition, physical and chemical composition, surface? A number in parentheses indicates the year of last reapproval. The machined counterbore may be omitted if this plugging technique is used.

The replica shall indicate that the hole bottom is? This practice, however, must not be confused with, nor does it supersede Practice Especi? Current e28 approved July 10, Without changing any examination parameters, the ultrasonic asgm from the remaining blocks with both smaller and larger asmt re?

NOTE 2—This practice may be used to produce blocks with? This practice shall in no way preclude the speci? Active view current version of standard Translated Standard: Additional procedures and controls may be required when fabricating reference blocks from other than carbon or alloy steel material. Note 2—Practice E and W428 E also describe procedures for selecting material, fabricating blocks, and checking response.

ASTM E428 – 08(2013)

Active view current version of standard. G—Hole bottom must be?

Last previous edition E — See Reference 1 for area-amplitude limitations at other frequencies and transducer diameters.

Additional supplemental requirements may be needed when using this practice to fabricate reference blocks from other types of materials or with larger diameter holes. Link to Active This link will always route to the current Active version of the standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. This practice shall in no way preclude the specification or addition of any supplemented requirements as deemed necessary for the specific application.

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If the ultrasonic-response characteristics are to be established by immersion techniques, the drilled? Also see Reference 2 for cautions regarding use of standard blocks for test standardizations.

Careful attention must be given to the squareness of corners of the cutter, the slightest radius reduces the re? On samples that are to have FBHs smaller than 3? Unlike this practice, Practice E has requirements for evaluation relative to a specified standard target. This practice shall in no way preclude the specification or addition of any supplemented requirements as deemed necessary for the specific application.

It is the responsibility of the user of this standard to establish appro- 1 This practice is under the jurisdiction of ASTM Committee E07 on Nondestructive Testing and is the direct responsibility of Subcommittee E Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

This practice, however, must not be confused with, nor does it supersede Practice Especifically governing the fabrication and evaluation of T6 aluminum alloy ultrasonic standard reference blocks. The reference blocks described are suitable for use with either the direct-contact method or immersion pulse-echo ultrasonic methods.

Link to Active This link will always route to the current Active version of the standard. Unlike this practice, Practice E has requirements for evaluation relative to a specified standard target.

It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. In cases of materials aatm are acoustically transparent to the extent that this requirement cannot be satis?

With the amplitude from the? The curve may vary when the test is performed at other frequencies with different diameter search units and different water-path distances or if a contact test method is used. This practice, however, must not be confused with, nor does it supersede Practice Especifically governing the fabrication and evaluation of T6 aluminum alloy ultrasonic standard reference blocks.

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ASTM E – 00_百度文库

For record purposes, the replica may be projected on a comparator screen and photographed as shown in Fig. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Block sets conforming to customary commercial practice are grouped as follows: Where several sets and types of blocks are being used, a serial number identi? Additional procedures and controls may be required when fabricating reference blocks from other than carbon or alloy steel material.

However, the coating must not signi? Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. The examination instruments, frequency, and search unit used in the evaluation of the raw material intended for the fabrication of the reference blocks shall be comparable to that used in the examination of the production material.

An adequate air gap must be maintained at the hole bottom.

Without changing any test parameters, the ultrasonic response from the remaining blocks with both shorter and longer distances are plotted on the response curve.

Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. It is recommended that blocks fabricated as sets be compared with each other to determine their relative ultrasonic-response characteristics.

Unlike this practice, Practice E has requirements for evaluation relative to a speci? This is particularly desirable in the cases of sets containing?